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A business relying on a single type of product or services can be highly risky. Any change in the market place – a change of customer behavior, a new competitor – might have a high impact on the business results. Diversification is an opportunity to spread and reduce the potential risks.

The mathematical concept of diversity has many applications, ranging from ecology over demography to information science. In the context of business performance diversity indices can be used as key performance indicators (KPIs) to analyze markets, define targets for diversification, and track the success of derived business actions.

Although not explicitly mentioned in the presentation, the Berger Parker index equals the maximum proportional abundance in the dataset pmax. Simply look for the highest value of pi. In the two examples given it is either 75% or 14%. The Berger Parker Index equals the inverse of true diversity of order infinity.